257913353 has 8 divisors (see below), whose sum is σ = 272856000. Its totient is φ = 243107568.

The previous prime is 257913343. The next prime is 257913371. The reversal of 257913353 is 353319752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257913353 - 2⁶ = 257913289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257913343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30326 + ... + 37887.

It is an arithmetic number, because the mean of its divisors is an integer number (34107000).

Almost surely, 2^257913353 is an apocalyptic number.

It is an amenable number.

257913353 is a deficient number, since it is larger than the sum of its proper divisors (14942647).

257913353 is a wasteful number, since it uses less digits than its factorization.

257913353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68431.

The product of its digits is 85050, while the sum is 38.

The square root of 257913353 is about 16059.6809744154. The cubic root of 257913353 is about 636.5384015006.

The spelling of 257913353 in words is "two hundred fifty-seven million, nine hundred thirteen thousand, three hundred fifty-three".